TERPS Trial for de Novo Oligometastic Prostate Cancer

May 29, 2026 updated by: Department of Radiation Oncology, University of Maryland, Baltimore

Phase 2 Randomized Total Eradication of Metastatic Lesions Following Definitive Radiation to the Prostate in de Novo oligometaStatic Prostate Cancer (TERPS) Trial

This research is being done to see if we can improve the outcome of prostate cancer patients who present with metastatic lesions at initial diagnosis.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study will compare the effects, good and/or bad, of using the standard of care treatment (systemic therapy + primary prostate radiation) compared to standard of care treatment plus stereotactic ablative radiation therapy (SABR) to metastatic lesions for prostate patients. The researchers are also trying to learn if the addition of SABR will affect recurrence rates. Presence of circulating tumor cells, gut bacteria, and quality of life will be assessed for both groups.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
122

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • California
      • La Jolla, California, United States, 92093
        • Recruiting
        • UC San Diego Moores Cancer Center
        • Contact:
    • Kansas
      • Kansas City, Kansas, United States, 66160
        • Recruiting
        • KU Medical Center- Cancer Center
        • Contact:
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • Recruiting
        • Maryland Proton Treatment Center
        • Contact:
      • Baltimore, Maryland, United States, 21201
      • Bel Air, Maryland, United States, 21014
        • Recruiting
        • Upper Chesapeake Health
        • Contact:
      • Columbia, Maryland, United States, 21044
        • Recruiting
        • Central Maryland Radiation Oncology
        • Contact:
      • Glen Burnie, Maryland, United States, 21061
        • Recruiting
        • Baltimore Washington Medical Center
        • Contact:
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Recruiting
        • Sidney Kimmel Cancer Center at Jefferson Health
        • Contact:
      • Pittsburgh, Pennsylvania, United States, 15232
        • Recruiting
        • UPMC Hillman Cancer Center
        • Contact:
    • Virginia
      • Midlothian, Virginia, United States, 23114
        • Recruiting
        • Bon Secours Cancer Institute at St. Francis
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patient must have at least one and up to three asymptomatic metastatic tumor(s) of the bone or soft tissue (with at least one bone metastasis) develop within the past 6-months that are seen on imaging. Up to five lesions are allowed on advanced functional imaging such as fluciclovine (Axumin), choline or PSMA PET-CT scan.

    1. CT or MRI scan within 6 months of enrollment
    2. Bone scan within 6 months of enrollment
    3. Fluciclovine (Axumin), choline, or PSMA PET-CT scan within 6 months of enrollment (PET-CT scan is reasonable for study entry imaging as an alternative to CT/MRI scan and bone scan)
  2. Histologic confirmation of malignancy (primary or metastatic tumor).
  3. Patient may have had prior systemic therapy and/or ADT associated with treatment within 9-months of enrollment.
  4. PSA > 0.5 but <100.
  5. Patient must be ≥ 18 years of age.
  6. Patient must have a life expectancy ≥ 12 months.
  7. Patient must have an ECOG performance status ≤ 2.
  8. Patient must have the ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

  1. Castration-resistant prostate cancer (CRPC).
  2. Prior radiation therapy to an overlapping site of a target lesion that would preclude further radiation therapy
  3. Spinal cord compression or impending spinal cord compression.
  4. Suspected pulmonary and/or liver metastases (greater >10 mm in largest axis).
  5. Patient receiving any other investigational agents.
  6. Inability to receive any form of systemic therapy in the opinion of a treating medical oncologist .
  7. Unable to lie flat during or tolerate PET/MRI, PET/CT or SABR.
  8. No radiographical evidence of cranial metastasis.
  9. Refusal to sign informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Best systemic therapy (BST) + primary prostate radiation (XRT)
Radiation: Prostate radiation (XRT)
Both arms will receive prostate radiation. Multiple treatment regimens are allowed per protocol.
Drug: Systemic Therapy
All systemic therapy is provided as best prescribed for patient per their medical oncologist.
Active Comparator: BST + XRT + SABR metastasis-directed therapy (MDT)
Radiation: Prostate radiation (XRT)
Both arms will receive prostate radiation. Multiple treatment regimens are allowed per protocol.
Drug: Systemic Therapy
All systemic therapy is provided as best prescribed for patient per their medical oncologist.
Radiation: Stereotactic ablative radiation therapy (SABR)
SABR is delivered to those randomized to Arm 2.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
To determine the 2-year failure-free survival (FFS) of men who have oligometastatic prostate cancer with BST+XRT versus BST+XRT+SABR MDT.
Time Frame: 2 years
Cross-over to the SABR MDT is allowed following failure.
2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
To determine the number of participants with toxicities related to SABR MDT in patients with de novo oligometastatic disease
Time Frame: 5 years
Adverse events will be assessed at baseline, on treatment visit, and follow-up visit.
5 years
To determine local control at 12-months after SABR MDT in patients with de novo oligometastatic disease.
Time Frame: 1 year
1 year
To assess time to progression
Time Frame: 5 years
Progression will be assessed for time to locoregional progression, time to distant progression, time to new metastasis, radiographic progression-free survival and duration of response after randomization to best systemic therapy (BST) and primary prostate radiation (XRT) versus BST, XRT and stereotactic ablative radiation therapy (SABR) metastasis-directed therapy (MDT).
5 years
Quality of life assessed through EPIC tool utilizing patient scores in each function group following completion of SABR MDT.
Time Frame: 5 years
EPIC quality of life tool will be used to assess quality of life following treatment. This survey will be completed at baseline and during follow-up visits. Averages will be taken for each section in the survey (Urinary Function, Bowel Function, Sexual Function, and Hormonal function).
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Maryland, Baltimore

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 18, 2022

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 31, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 31, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 10, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 24, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 4, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 3, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 29, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HP-00098826

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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